Home / 131,482,270.76-181,450,874.64-72,743,979.24

Finding the Fourth Proportional to 131,482,270.76, 181,450,874.64 and 72,743,979.24

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Solution

The fourth proportional to 131,482,270.76, 181,450,874.64 and 72,743,979.24 is: 100,389,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,482,270.76 : 181,450,874.64 = 72,743,979.24 : x
  2. Step 2: Convert to fraction form
    131,482,270.76/181,450,874.64 = 72,743,979.24/x
  3. Step 3: Cross multiply
    131,482,270.76x = 181,450,874.64 × 72,743,979.24
  4. Step 4: Simplify right side
    131,482,270.76x = 13,199,458,657,892,000
  5. Step 5: Solve for x
    x = 13,199,458,657,892,000/131,482,270.76
  6. Step 6: Final answer
    x = 100,389,646.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.